Comment and whitespace tweaks.

1 files changed, 6 insertions, 10 deletions

diff --git a/editors/vi.c b/editors/vi.c
index 8944f770a..50dda7f3a 100644
--- a/editors/vi.c
+++ b/editors/vi.c
@@ -2243,11 +2243,9 @@ static char readit(void)	// read (maybe cursor) key from stdin
 
         n = chars_to_parse;
         if (n == 0) {
-                // If no data, block waiting for input.
-                // Can't read more than minimal ESC sequence size -
-                // see "n = 0" below. Example of mishandled
-                // sequence if we read 4 chars here: "ESC O A ESC O A".
-                // We'll read "ESC O A ESC" and lose second ESC!
+                // If no data, block waiting for input.  (If we read more than the
+                // minimal ESC sequence size, the "n=0" below would instead have to
+                // figure out how much to keep, resulting in larger code.)
                 n = safe_read(0, readbuffer, 3);
                 if (n <= 0) {
  error:
@@ -2272,7 +2270,8 @@ static char readit(void)	// read (maybe cursor) key from stdin
 
                 pfd.fd = STDIN_FILENO;
                 pfd.events = POLLIN;
-                for (eindex = esccmds; eindex < esccmds + ARRAY_SIZE(esccmds); eindex++) {
+                for (eindex = esccmds; eindex < esccmds + ARRAY_SIZE(esccmds); eindex++)
+                {
                         // n - position in sequence we did not read yet
                         int i = 0; // position in sequence to compare
 
@@ -2286,10 +2285,7 @@ static char readit(void)	// read (maybe cursor) key from stdin
 
                                         // Timeout is needed to reconnect escape sequences
                                         // split up by transmission over a serial console.
-                                        // Even though inter-char delay on 1200 baud is <10ms,
-                                        // process scheduling can enlarge it arbitrarily,
-                                        // on both send and receive sides.
-                                        // Erring on the safe side - 5 timer ticks on 100 HZ.
+
                                         if (safe_poll(&pfd, 1, 50)) {
                                                 if (safe_read(0, readbuffer + n, 1) <= 0)
                                                         goto error;